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  Table saw with improved safety systemThe Patent Description & Claims data below is from USPTO Patent Application 20060123964. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation of U.S. patent application Ser. No. 10/052,705, filed Jan. 16, 2002, issuing as U.S. Pat. No. 6,994,004 on Feb. 7, 2006, which is a continuation-in-part of the following U.S. patent applications: Ser. No. 09/676,190, filed Sep. 29, 2000, Ser. No. 09/929,221, filed Aug. 13, 2001, Ser. No. 09/929,226, filed Aug. 13, 2001, issued as U.S. Pat. No. 6,920,814 on Jul. 26, 2005, Ser. No. 09/929,227, filed Aug. 13, 2001, Ser. No. 09/929,234, filed Aug. 13, 2001, Ser. No. 09/929,235, filed Aug. 13, 2001, Ser. No. 09/929,236, filed Aug. 13, 2001, Ser. No. 09/929,237, filed Aug. 13, 2001, Ser. No. 09/929,238, filed Aug. 13, 2001, Ser. No. 09/929,240, filed Aug. 13, 2001, Ser. No. 09/929,241, filed Aug. 13, 2001, Ser. No. 09/929,242, filed Aug. 13, 2001, Ser. No. 09/929,244, filed Aug. 13, 2001, issued as U.S. Pat. No. 6,857,345 on Feb. 22, 2005, Ser. No. 09/929,425, filed Aug. 13, 2001, and Ser. No. 09/929,426, filed Aug. 13, 2001. The disclosure of each of the above applications is hereby incorporated by reference in its entirety for all purposes. [0002] U.S. patent application Ser. No. 10/052,705 also claims the benefit of and priority from the following U.S. Provisional Patent Applications, all of which are hereby incorporated by reference: Ser. No. 60/270,011, filed Feb. 20, 2001, Ser. No. 60/270,941, filed Feb. 22, 2001, Ser. No. 60/270,942, filed Feb. 22, 2001, Ser. No. 60/273,177, filed Mar. 2, 2001 and Ser. No. 60/273,178, filed Mar. 2, 2001. The disclosure of each of the above applications is hereby incorporated by reference in its entirety for all purposes. [0003] This application is also a continuation of the following U.S. patent applications: Ser. No. 10/100,211, filed Mar. 13, 2002, Ser. No. 10/146,527, filed May 15, 2002, Ser. No. 10/172,553, filed Jun. 13, 2002, Ser. No. 10/189,027, filed Jul. 2, 2002, Ser. No. 10/189,031, filed Jul. 2, 2002, Ser. No. 10/202,928, filed Jul. 25, 2002, Ser. No. 10/243,042, filed Sep. 13, 2002, Ser. No. 10/292,607, filed Nov. 12, 2002, Ser. No. 10/341,260, filed Jan. 13, 2003, Ser. No. 10/345,630, filed Jan. 15, 2003, Ser. No. 10/643,296, filed Aug. 18, 2003, Ser. No. 10/785,361, filed Feb. 23, 2004, Ser. No. 10/794,161, filed Mar. 4, 2004, Ser. No. 10/923,273, filed Aug. 20, 2004, Ser. No. 10/923,282, filed Aug. 20, 2004, Ser. No. 10/923,290, filed Aug. 20, 2004, Ser. No. 10/932,339, filed Sep. 1, 2004, Ser. No. 11/026,006, filed Dec. 31, 2004, Ser. No. 11/026,114, filed Dec. 31, 2004, Ser. No. 11/027,254, filed Dec. 31, 2004, Ser. No. 11/027,322, filed Dec. 31, 2004, Ser. No. 11/027,600, filed Dec. 31, 2004, Ser. No. 11/045,972, filed Jan. 28, 2005, Ser. No. 11/098,984, filed Apr. 4, 2005, Ser. No. 11/107,499, filed Apr. 15, 2005, Ser. No. 11/208,214, filed Aug. 19, 2005, and Ser. No. 11/256,757, filed Oct. 24, 2005. The disclosure of each of the above applications is hereby incorporated by reference in its entirety for all purposes. [0004] This application also claims the benefit of and priority from U.S. Provisional Patent Application Ser. No. 60/667,485, filed Mar. 31, 2005, the disclosure of which is hereby incorporated by reference in its entirety for all purposes. FIELD [0005] The present invention relates to table saws and more particularly to a table saw with an improved safety system. BACKGROUND [0006] Table saws are a type of woodworking machinery used to cut workpieces of wood, plastic and other materials. Table saws include a flat surface or table with a circular saw blade extending up through a slot in the table. A user slides a workpiece on the table against and past the blade while the blade is spinning to cut the workpiece. [0007] Of all the tools in a woodworking shop, table saws present perhaps the greatest risk of injury. Table saws present a risk of injury to users because the spinning blade is often exposed when in use. The blade cuts very quickly and can sever a finger upon the slightest slip or misplacement. Accordingly, safety features or systems have been developed to minimize the risk of injury. Probably the most common safety feature is a blade guard that physically blocks a user from making contact with the spinning blade. In many situations, blade guards effectively reduce the risk of injury; however, there are many instances where the nature of the operations to be performed precludes using a guard that completely blocks access to the blade. [0008] There exists a need for a table saw with a safety system that significantly reduces the risk of serious injury to a user accidentally contacting the spinning blade. The present invention provides such a table saw. BRIEF DESCRIPTION OF THE DRAWINGS [0009] FIG. 1 is a schematic block diagram of a table saw with a fast-acting safety system. [0010] FIG. 2 is a schematic diagram of an exemplary safety system configured to stop the blade of a table saw. [0011] FIG. 3 shows an exemplary table saw. [0012] FIG. 4 is a fragmentary schematic side elevation of one exemplary brake mechanism configured to stop the rotation of the blade on a table saw. [0013] FIG. 5 is a fragmentary cross-sectional schematic view taken generally along line 5-5 in FIG. 4. [0014] FIG. 6 is similar to FIG. 5 but the support brace has been removed to further illustrate other portions of the brake mechanism and table saw. [0015] FIG. 7 is a fragmentary schematic side elevation of an alternative exemplary brake mechanism configured to stop the rotation of the blade on a table saw. [0016] FIG. 8 is a fragmentary cross-sectional schematic view taken generally along line 8-8 in FIG. 7. [0017] FIG. 9 is a magnified, cross-sectional schematic view showing engagement of the shaft with the support brace, positioning member and cartridge. For clarity, the shaft is not shown in cross-section. [0018] FIG. 10 is a fragmentary schematic side elevation of another alternative exemplary brake mechanism configured to stop rotation of the blade on a table saw. [0019] FIG. 11 is similar to FIG. 10 but shows the rack assembly removed to better illustrate the motion of the cartridge and brake pawl as the height of the blade is adjusted. [0020] FIG. 12 is a fragmentary cross-sectional schematic view taken generally along line 12-12 in FIG. 10. Continue reading... Full patent description for Table saw with improved safety system Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Table saw with improved safety system patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. 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